Can you please help me with the figures shown in the attached screenshot?

Question 4 (1 point) Saved The matrix below is the final matrix form for a system of two linear equations in the variables x1 and x2. Write the solution of the system. ( a) The unique solution to the system is *1 = -8 and x2 = 4 " b) There are infinitely many solutions. The solution is *1 = 4 and *2 = t , for any real number t. O c) There is no solution Question 5 (1 point) Perform the operation, if possible. -8 2 1 -9 Let A = -9 -9 and B = : -9 9 Find A + B - 6 - 6 - 2 2 O a) -5 -9 - 18 -8 -4 Ob) -5 -7 - 18 -8 -4 O c) -11 11 0 0 15 O d) -5 -7 18 - 9 - 8 Question 6 (1 point) Perform the indicated operation, if possible. ( a) The operation is not possible. O b) [ -126 19 -21 - 28